


Using AJAX to return JavaScript scripts in HTML fragments_javascript tips
This is a very common problem in AJAX development. If you have not been using JavaScript frameworks for development, I believe you have discovered this problem long ago. This article analyzes two solutions, one of which explains the implementation of the jQuery framework.
1. Problem description
The following is a simple example to demonstrate the problem. In the following example, assume that the variable responseText is the HTML fragment data loaded by AJAX, which contains a script to pop up a message. Use the innerHTML method to insert it into the DIV with the ID ajaxData. You may expect to see the message box pop up, but you find that it does not. That's the problem.
2. Two solutions Method
1. Use JavaScript’s eval method to execute the script.
The specific implementation idea of this method is to extract all the scripts in xmlHttp.responseText. No matter how many script blocks the HTML loaded by AJAX contains, we can call the eval method to execute the found script blocks. . An encapsulated function is provided below:
function executeScript(html )
{
var reg = / Split
var htmlBlock = html.split("");
for (var i in htmlBlock)
{
var blocks; // Content array matching regular expression, blocks[1] is a real script content, because we used brackets to capture the previous reg definition
if (blocks = htmlBlock[i].match(reg))
{
//Clear Possible comment tags can be ignored at the end of the comment -->, and eval will still work normally
var code = blocks[1].replace(/

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Title: Methods and code examples to resolve 403 errors in jQuery AJAX requests. The 403 error refers to a request that the server prohibits access to a resource. This error usually occurs because the request lacks permissions or is rejected by the server. When making jQueryAJAX requests, you sometimes encounter this situation. This article will introduce how to solve this problem and provide code examples. Solution: Check permissions: First ensure that the requested URL address is correct and verify that you have sufficient permissions to access the resource.

jQuery is a popular JavaScript library used to simplify client-side development. AJAX is a technology that sends asynchronous requests and interacts with the server without reloading the entire web page. However, when using jQuery to make AJAX requests, you sometimes encounter 403 errors. 403 errors are usually server-denied access errors, possibly due to security policy or permission issues. In this article, we will discuss how to resolve jQueryAJAX request encountering 403 error

Using Ajax to obtain variables from PHP methods is a common scenario in web development. Through Ajax, the page can be dynamically obtained without refreshing the data. In this article, we will introduce how to use Ajax to get variables from PHP methods, and provide specific code examples. First, we need to write a PHP file to handle the Ajax request and return the required variables. Here is sample code for a simple PHP file getData.php:

How to solve the problem of jQueryAJAX error 403? When developing web applications, jQuery is often used to send asynchronous requests. However, sometimes you may encounter error code 403 when using jQueryAJAX, indicating that access is forbidden by the server. This is usually caused by server-side security settings, but there are ways to work around it. This article will introduce how to solve the problem of jQueryAJAX error 403 and provide specific code examples. 1. to make

Ajax (Asynchronous JavaScript and XML) allows adding dynamic content without reloading the page. Using PHP and Ajax, you can dynamically load a product list: HTML creates a page with a container element, and the Ajax request adds the data to that element after loading it. JavaScript uses Ajax to send a request to the server through XMLHttpRequest to obtain product data in JSON format from the server. PHP uses MySQL to query product data from the database and encode it into JSON format. JavaScript parses the JSON data and displays it in the page container. Clicking the button triggers an Ajax request to load the product list.

Build an autocomplete suggestion engine using PHP and Ajax: Server-side script: handles Ajax requests and returns suggestions (autocomplete.php). Client script: Send Ajax request and display suggestions (autocomplete.js). Practical case: Include script in HTML page and specify search-input element identifier.

Ajax is not a specific version, but a technology that uses a collection of technologies to asynchronously load and update web page content. Ajax does not have a specific version number, but there are some variations or extensions of ajax: 1. jQuery AJAX; 2. Axios; 3. Fetch API; 4. JSONP; 5. XMLHttpRequest Level 2; 6. WebSockets; 7. Server-Sent Events; 8, GraphQL, etc.

How to use Ajax functions to achieve asynchronous data interaction With the development of the Internet and Web technology, data interaction between the front end and the back end has become very important. Traditional data interaction methods, such as page refresh and form submission, can no longer meet user needs. Ajax (Asynchronous JavaScript and XML) has become an important tool for asynchronous data interaction. Ajax enables the web to use JavaScript and the XMLHttpRequest object
